RF Filter Design Techniques

Speaker: A/Prof K Kikkert , James Cook University

When: 03.00PM, Monday 22 Jul 2002

Venue: University of Queensland, ITEE School, GP-S Blg. Room: 78-420



Abstract:

 The talk will describe different filter design techniques for
 RF filters using low cost RF Printed Circuit materials. For
 operation in the 300MHz to 3 GHz frequency range, three different
 design techniques will be compared. Two of these techniques, the
 parallel coupled stripline filter and the interdigital filter are
 suitable for narrowband filters, the third technique the line
 coupled resonator filter is suitable for both narrowband and
 wideband designs. The techniques are illustrated using a design
 of filters with a 1 GHz centre frequency and a bandwidth of 70
 MHz. A wideband filter with a 1 GHz centre frequency and a 500
 MHz bandwidth is also described.

 At lower frequencies, different design techniques need to be
 used and examples of filters at 30MHz and 160 MHz will be
 discussed. Finally some techniques for printed circuit filters at
 higher frequencies will be described, with examples of 8 and 13
 GHz filters.

Biography:

 Associate Professor Cornelis J. (Keith) Kikkert is the Head of
 Electrical and Computer Engineering at James Cook University. He
 has an extensive experience in many aspects of RF electronics
 design for satellite receivers and other communication
 equipment. He developed techniques to linearise high speed
 Analogue to Digital Converters and demodulate BPSK signals using
 CPLD's. The JCUMetSat weather satellite receiver he designed and
 built at James Cook University puts 1820 weather images on the
 web each week. He is the inventor on 6 patents and has published
 more than 60 papers.